I can see what you mean, ClenchedBottom, but I think that what some people are trying to express (maybe badly) is that you could make a case for EVERY child benefiting from 1:1 tuition, and the realities of how its been delivered, have understandably hacked some people off.
As a teacher, I've seen this delivered in various ways. Some schools target C/D borderline pupils. That's all about league tables. Why is a C/D borderline pupils any more or less deserving than an A/B or B/C borderline one?
Some of the pupils I've known receive it, have fallen behind totally through their own lack of effort. They've pissed about in lessons, wasting other people's time, and then had the advantage of 1:1 tuition - while other hard working pupils haven't.
Now, of course you could argue that that pupil may have crap home life which contributes to the pissing about. But what about another pupil with an equally crap home life who chooses NOT to piss about and jeapardise others' education?
You can go round in ever decreasing circles with this. Ultimately, I think the unfortunate side effect of 1:1 tuition is that it's fostered this sense of entitlement that's prevalent in society right now. Parents don't see it as their responsibility to provide the 'add ons' to the school experience. They see everything as something which should be funded by that great, bottomless public purse (ie other people)
I've seen the benefits of 1:1 tuition in some cases, but ultimately, I think it's an unfair system, because every single child could benefit from it, yet only some get it, based on quite arbitrary measures.